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4.3 Electric circuits

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Question 74

Which circuit includes a light-dependent resistor (LDR) and how does the resistance of the LDR behave as the light intensity increases?

A

Circuit: light detector; Resistance behavior: increases

B

Circuit: light detector; Resistance behavior: decreases

C

Circuit: temperature detector; Resistance behavior: increases

D

Circuit: temperature detector; Resistance behavior: decreases

Markscheme

4.3 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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